CONTINUOUS CONTROL METHOD OF DEFLECTOR OPERATION DIRECTION, HORIZONTAL AND INCLINATION WELL ANGLE MEASURING AND CONTROL DEVICE Russian patent published in 2005 - IPC

FIELD: remote sensing system for well bottom information transmission, particularly for drilling horizontal branch wells with the use of downhole motors.

SUBSTANCE: method involves transmitting well bottom information defining deflector position, as well as horizontal and inclination well angles to round-based registering apparatuses as pulse-time signals through wire communication link. Continuous control of above parameters is performed in real time scale on the base of visual image of tracking indicator depicting deflector position relative magnetic meridian and horizontal and inclination well angles visible on downhole transducers, wherein the visual image is displayed on computer monitor. Device for above method realization comprises measuring transducer to determine deflector installation angle and inclinometer with transducers determining horizontal and inclination well angles. The transducers are arranged in sealed container oriented and secured in non-magnetic case, which is rigidly connected with the deflector, as well as wire communication link to connect downhole transducers with ground-based registering apparatuses placed in the well through drilling string. TV camera is placed in the sealed container. Arranged in front of the container is inclinometer with visible transducers determining horizontal and inclination well angles and with tracking indicator indicating deflector installation angle, wherein the indicator is formed as marking line drawn on spherical inclinometer closure and extending through pole point thereof. The sealed container is fastened to cable to insert thereof in non-magnetic case. The sealed container has unit to fixedly secure thereof with non-magnetic case.

EFFECT: possibility to obtain visual and reliable information, simplified maintenance, increased control efficiency, reduced labor inputs, possibility to obtain necessary well inclination.

4 cl, 2 dwg